B
    `d%                 @   s   d Z ddlmZ ddlZddlZddlZddlZddlmZ ddl	m
Z
 ddlmZ ddlmZmZ ddlmZ eeZG d	d
 d
ejZG dd deZG dd dejZG dd deZdd ZdS )zBase option parser setup    )absolute_importN)	strtobool)string_types)UNKNOWN_ERROR)ConfigurationConfigurationError)get_terminal_sizec               @   sR   e Zd ZdZdd Zdd Zddd	Zd
d Zdd Zdd Z	dd Z
dd ZdS )PrettyHelpFormatterz4A prettier/less verbose help formatter for optparse.c             O   s:   d|d< d|d< t  d d |d< tjj| f|| d S )N   max_help_position   indent_incrementr      width)r   optparseIndentedHelpFormatter__init__)selfargskwargs r   </tmp/pip-unpacked-wheel-hu9qqap1/pip/_internal/cli/parser.pyr      s    zPrettyHelpFormatter.__init__c             C   s
   |  |S )N)_format_option_strings)r   optionr   r   r   format_option_strings!   s    z)PrettyHelpFormatter.format_option_strings <{}>, c             C   s~   g }|j r||j d  |jr0||jd  t|dkrH|d| | rt|jp^|j }||	|  d
|S )z
        Return a comma-separated list of option strings and metavars.

        :param option:  tuple of (short opt, long opt), e.g: ('-f', '--format')
        :param mvarfmt: metavar format string
        :param optsep:  separator
        r   r    )_short_optsappend
_long_optsleninserttakes_valuemetavardestlowerformatjoin)r   r   mvarfmtoptsepoptsr$   r   r   r   r   $   s    z*PrettyHelpFormatter._format_option_stringsc             C   s   |dkrdS |d S )NOptionsr   z:
r   )r   headingr   r   r   format_heading;   s    z"PrettyHelpFormatter.format_headingc             C   s   d | t|d}|S )zz
        Ensure there is only one newline between usage and the first heading
        if there is no description.
        z
Usage: {}
z  )r'   indent_linestextwrapdedent)r   usagemsgr   r   r   format_usage@   s    z PrettyHelpFormatter.format_usagec             C   sV   |rNt | jdrd}nd}|d}| }| t|d}d||}|S dS d S )NmainCommandsDescription
z  z{}:
{}
r   )hasattrparserlstriprstripr/   r0   r1   r'   )r   descriptionlabelr   r   r   format_descriptionI   s    
z&PrettyHelpFormatter.format_descriptionc             C   s   |r|S dS d S )Nr   r   )r   epilogr   r   r   format_epilog[   s    z!PrettyHelpFormatter.format_epilogc                s"    fdd| dD }d|S )Nc                s   g | ]} | qS r   r   ).0line)indentr   r   
<listcomp>c   s    z4PrettyHelpFormatter.indent_lines.<locals>.<listcomp>r8   )splitr(   )r   textrD   	new_linesr   )rD   r   r/   b   s    z PrettyHelpFormatter.indent_linesN)r   r   )__name__
__module____qualname____doc__r   r   r   r.   r4   r?   rA   r/   r   r   r   r   r	      s   
	r	   c               @   s   e Zd ZdZdd ZdS )UpdatingDefaultsHelpFormatterzCustom help formatter for use in ConfigOptionParser.

    This is updates the defaults before expanding them, allowing
    them to show up correctly in the help listing.
    c             C   s(   | j d k	r| j | j j tj| |S )N)r:   _update_defaultsdefaultsr   r   expand_default)r   r   r   r   r   rP   n   s    
z,UpdatingDefaultsHelpFormatter.expand_defaultN)rI   rJ   rK   rL   rP   r   r   r   r   rM   g   s   rM   c               @   s    e Zd Zdd Zedd ZdS )CustomOptionParserc             O   s(   | j ||}| j  | j|| |S )z*Insert an OptionGroup at a given position.)add_option_groupoption_groupspopr"   )r   idxr   r   groupr   r   r   insert_option_groupv   s    
z&CustomOptionParser.insert_option_groupc             C   s.   | j dd }x| jD ]}||j  qW |S )z<Get a list of all options, including those in option groups.N)option_listrS   extend)r   resir   r   r   option_list_all   s    z"CustomOptionParser.option_list_allN)rI   rJ   rK   rW   propertyr\   r   r   r   r   rQ   t   s   	rQ   c               @   s@   e Zd ZdZdd Zdd Zdd Zdd	 Zd
d Zdd Z	dS )ConfigOptionParserzsCustom option parser which updates its defaults by checking the
    configuration files and environmental variablesc             O   sD   | d| _| dd}t|| _| js,ttjj| f|| d S )NnameisolatedF)rT   r_   r   configAssertionErrorr   OptionParserr   )r   r   r   r`   r   r   r   r      s
    

zConfigOptionParser.__init__c          
   C   sN   y| ||S  tjk
rH } ztd| td W d d }~X Y nX d S )Nz*An error occurred during configuration: {}   )check_valuer   OptionValueErrorprintr'   sysexit)r   r   keyvalexcr   r   r   check_default   s
    z ConfigOptionParser.check_defaultc             c   s   d| j dg}dd |D }xR| j D ]D\}}|s@td| q&|dd\}}||kr&|| ||f q&W x,|D ]$}x|| D ]\}}||fV  qW qtW d S )Nglobalz:env:c             S   s   i | ]
}g |qS r   r   )rB   r_   r   r   r   
<dictcomp>   s    zGConfigOptionParser._get_ordered_configuration_items.<locals>.<dictcomp>z7Ignoring configuration key '%s' as it's value is empty..r   )r_   ra   itemsloggerdebugrF   r   )r   override_ordersection_itemssection_keyrk   sectionrj   r   r   r    _get_ordered_configuration_items   s    
z3ConfigOptionParser._get_ordered_configuration_itemsc          	      sR  t j_t }x D ]\ }d  dkrBq jdkryt|}W n, t	k
r   t
j |}| Y nX njdkr| } fdd|D }nhjdkr|j  }||}jpd}jpi }j||f|| n |}||j< q W x|D ] tj | < q.W d_|S )	zUpdates the given defaults with values from the config files and
        the environ. Does a little special handling for certain types of
        options (lists).z--N)
store_truestore_falsecountr   c                s   g | ]}  |qS r   )rm   )rB   v)rj   r   r   r   r   rE      s    z7ConfigOptionParser._update_defaults.<locals>.<listcomp>callbackr   )r   ValuesrO   valuessetrx   
get_optionactionr   
ValueErrorinvalid_config_error_messageerrorrF   addr%   get_opt_stringconvert_valuecallback_argscallback_kwargsr}   rm   getattr)r   rO   	late_evalrk   	error_msgopt_strr   r   r   )rj   r   r   r   rN      s:    




z#ConfigOptionParser._update_defaultsc          
   C   s   | j st| jS y| j  W n2 tk
rR } z| tt	| W dd}~X Y nX | 
| j }x@|  D ]4}||j}t|trn| }|||||j< qnW t|S )zOverriding to make updating the defaults after instantiation of
        the option parser possible, _update_defaults() does the dirty work.N)process_default_valuesr   r~   rO   ra   loadr   ri   r   strrN   copy_get_all_optionsgetr%   
isinstancer   r   re   )r   errrO   r   defaultr   r   r   r   get_default_values   s    "
z%ConfigOptionParser.get_default_valuesc             C   s"   |  tj | td| d S )Nz{}
)print_usagerh   stderrri   r   r'   )r   r3   r   r   r   r      s    zConfigOptionParser.errorN)
rI   rJ   rK   rL   r   rm   rx   rN   r   r   r   r   r   r   r^      s   	1r^   c             C   s    | dkrd ||S d ||S )zQReturns a better error message when invalid configuration option
    is provided.)ry   rz   zo{0} is not a valid value for {1} option, please specify a boolean value like yes/no, true/false or 1/0 instead.z[{0} is not a valid value for {1} option, please specify a numerical value like 1/0 instead.)r'   )r   rj   rk   r   r   r   r      s
    r   )rL   
__future__r   loggingr   rh   r0   distutils.utilr   Zpip._vendor.sixr   pip._internal.cli.status_codesr   pip._internal.configurationr   r   pip._internal.utils.compatr   	getLoggerrI   rr   r   r	   rM   rc   rQ   r^   r   r   r   r   r   <module>   s    
Pw